#-- encoding: UTF-8
#-- copyright
# OpenProject is a project management system.
# Copyright (C) 2012-2017 the OpenProject Foundation (OPF)
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License version 3.
#
# OpenProject is a fork of ChiliProject, which is a fork of Redmine. The copyright follows:
# Copyright (C) 2006-2017 Jean-Philippe Lang
# Copyright (C) 2010-2013 the ChiliProject Team
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
#
# See doc/COPYRIGHT.rdoc for more details.
#++

class Queries::Users::Filters::NameFilter < Queries::Users::Filters::UserFilter
  def type
    :string
  end

  def self.key
    :name
  end

  def where
    case operator
    when '='
      ["#{sql_concat_name} IN (?)", sql_value]
    when '!'
      ["#{sql_concat_name} NOT IN (?)", sql_value]
    when '~'
      ["#{sql_concat_name} LIKE ?", "%#{sql_value}%"]
    when '!~'
      ["#{sql_concat_name} NOT LIKE ?", "%#{sql_value}%"]
    end
  end

  private

  def sql_value
    case operator
    when '=', '!'
      values.map { |val| self.class.connection.quote_string(val.downcase) }.join(',')
    when '~', '!~'
      values.first.downcase
    end
  end

  def sql_concat_name
    case Setting.user_format
    when :firstname_lastname, :lastname_coma_firstname
      "LOWER(CONCAT(firstname, CONCAT(' ', lastname)))"
    when :firstname
      'LOWER(firstname)'
    when :lastname_firstname
      "LOWER(CONCAT(lastname, CONCAT(' ', firstname)))"
    when :username
      "LOWER(login)"
    end
  end
end
